CN102615843A - Method for manufacturing inflated tire - Google Patents
Method for manufacturing inflated tire Download PDFInfo
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- CN102615843A CN102615843A CN2011103267434A CN201110326743A CN102615843A CN 102615843 A CN102615843 A CN 102615843A CN 2011103267434 A CN2011103267434 A CN 2011103267434A CN 201110326743 A CN201110326743 A CN 201110326743A CN 102615843 A CN102615843 A CN 102615843A
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Abstract
The invention provides a method for manufacturing an inflate tire. In a process of forming a green tire of a tire by using a mold core, tire bead wires can be directly pasted on the mold core in a spiral manner. The method of manufacturing the inflated tire (1) comprises a tire bead wire winding step, where the tire bead wires (10) are spirally pasted around a tire rotating shaft, on an outer surface of a tire bead portion (4) of an inner lining layer (9) and/or an outer surface of the tire bead portion (4) of a tire core fabric (6A), namely, wire pasting surfaces (S). The tire bead wire winding step comprises a wire fixing step, where winding starting ends (10e) of the tire bead wires are fixed on the wire pasting surfaces (S); and a wire spiral-winding step, where, by rotating the mold core (N) around the tire rotating shaft, the tire bead wires are pasted on the wire pasting surfaces (S) along the tire periphery at a press position (T) pressed by a press roller (20), and the tire rotating shaft of the mold core (N) is inclined so that the press position is changed towards the tire radial outer side of the mold core (N).
Description
Technical field
The present invention relates in worker's method that the green tire that uses core with tire is shaped, through steel bead wire directly is pasted on core with helical form, with and method for manufacturing air tire that bead core is shaped.
Background technology
In the past, in following patent documentation 1, a kind of method for manufacturing air tire had been proposed, shown in figure 12, this method used have with fill in the core N (below, be called " core worker method ") of outer peripheral face of tire inner surface shape approximation when pressing.In this core worker method; Through paste inner liner 9, inside and outside triangle glue 8i, 8o, carcass cord 6A, bead core 5, belt 7, tread rubber 2G and sidewall rubber 3G etc. successively in the outside of core N; The green tire 1a that is shaped, and green tire 1a vulcanized with core N.In the method and since will act on the stretching of carcass in the sulfidation, belt etc. be suppressed to less, so have the such advantage of uniformity that improves pneumatic tire 1.
Yet, in above-mentioned core worker method, can't carry out turning back of carcass cord 6A both ends.Therefore, the bead core 5 of the green tire 1a that is shaped by core worker method adopts steel bead wire 10 along tire radially with the steel wire coiling body 5a of the overlapping coiling of helical form, and the structure of clamping carcass cord 6A is come in the both sides that are disposed at carcass cord 6A.Therefore, shown in Figure 11 (a) and (b), above-mentioned bead core 5 for example will be in advance the steel wire coiling body 5a of winding shaping on the anchor clamps J of ring-type, the tyre bead forming face B that crimping and moving is put to the outside of the interior triangle glue 8i that sticks on core N etc. goes up and forms.
But, because according to the difference of tire size and the diameter of steel wire coiling body 5a is also different, so above-mentioned method need be prepared a plurality of anchor clamps according to each tire size.In addition, when the tire size that will make when change takes place, also need change the operation of anchor clamps.Therefore, there is the big such problem of manufacturing cost in the past core worker method.
Patent documentation 1: TOHKEMY 2006-160236 communique
Summary of the invention
The present invention proposes in view of the problem of above that kind; Its purpose is; Provide a kind of in core worker method, through steel bead wire is directly sticked on the bead core that is shaped on the steel wire stickup face with helical form, thereby can cut down the method for manufacturing air tire of manufacturing cost.
The invention that technical scheme 1 is put down in writing among the present invention; It is a kind of method for manufacturing air tire; It is the airtyred method of making ring-type with pair of bead portion; It is characterized in that; Comprise steel bead wire coiling operation; On this outer surface of the core with the outer surface that can above-mentioned airtyred inner cavity surface be shaped, on the outer surface that is steel wire stickup face of the bead part of the carcass cord of pasting across the mode between the bead part of both sides with ring-type at the outer surface of the bead part of the inner liner of pasting across the mode between the bead part of both sides with ring-type and/or in the outside of above-mentioned inner liner, will be pasted with helical form around the tire rotating shaft by the steel bead wire that rubber covers; Above-mentioned steel bead wire coiling operation comprises: the fixation with steel wire operation, utilize by pressure roller the coiling top of steel bead wire to be fixed to the above-mentioned steel wire that is pasted on core and to paste face; And steel wire screw winding operation; Through above-mentioned steel bead wire being seen off on one side to core side above-mentioned core is rotated on one side around the tire rotating shaft; By the above-mentioned pressing position of pushing by pressure roller steel bead wire circumferentially is being pasted on above-mentioned steel wire stickup face along tire thus, and the tire rotating shaft of above-mentioned core is tilted so that above-mentioned pressing position moves to the tire radial outside of above-mentioned core continuously perhaps interimly.
In addition, the invention that technical scheme 2 is put down in writing in the method for manufacturing air tire that technical scheme 1 is put down in writing, comprises through making above-mentioned core to move the operation that thus above-mentioned pressing position is remained on certain in fact position away from the direction by pressure roller.
In addition; The invention that technical scheme 3 is put down in writing; In the method for manufacturing air tire that technical scheme 1 or 2 is put down in writing; Above-mentioned steel bead wire is wound into helical form laterally from the tire radially inner side, and above-mentioned steel wire screw winding operation alternately carries out equal diameter coiling step repeatedly and increase diameter coiling step, above-mentioned equal diameter coiling step is that above-mentioned steel bead wire is begun the step of reeling with certain in fact diameter from above-mentioned coiling top; The above-mentioned diameter coiling step that increases is after above-mentioned equal diameter coiling step, the step that winding diameter is increased smoothly in the front at coiling top.
In addition, the invention that technical scheme 4 is put down in writing, in the method for manufacturing air tire that arbitrary scheme is put down in writing in technical scheme 1 to 3, above-mentioned steel bead wire constitutes, and directly makes progress steel bead wire adjacent by overlapping coiling in fact seamlessly at tire.
In addition, the invention that technical scheme 5 is put down in writing in the method for manufacturing air tire that technical scheme 3 is put down in writing, when the tyre side face is observed, forms linearity in fact at the above-mentioned steel bead wire of being reeled in the diameter coiling step that increases.
In method for manufacturing air tire of the present invention; Comprise steel bead wire coiling operation; On this outer surface with core that outer surface can be shaped above-mentioned airtyred inner cavity surface; On the outer surface that is steel wire stickup face of the bead part of the outer surface of the bead part of the inner liner of pasting across the mode between the bead part of both sides with ring-type and/or the carcass cord pasted across the mode between the bead part of both sides with ring-type in the outside of above-mentioned inner liner, the steel bead wire that has covered rubber is pasted curl around the tire rotating shaft.In addition, above-mentioned steel bead wire coiling operation comprises: the fixation with steel wire operation, utilize by pressure roller the coiling top of steel bead wire to be fixed to the above-mentioned steel wire that is pasted on core and to paste face; And steel wire screw winding operation; Through above-mentioned steel bead wire being seen off on one side to core side above-mentioned core is rotated on one side around the tire rotating shaft; At the above-mentioned pressing position of pushing by pressure roller steel bead wire circumferentially is pasted on above-mentioned steel wire along tire thus and pastes face, and the tire rotating shaft of above-mentioned core is tilted so that above-mentioned pressing position moves to the tire radial outside of above-mentioned core continuously perhaps interimly.
In such method for manufacturing air tire,,, in addition do not need its operation so need not to prepare corresponding anchor clamps etc. separately according to every kind of tire size owing in core worker method, steel bead wire is directly sticked on steel wire with helical form paste face.Therefore can cut down manufacturing cost significantly.In addition, in the present invention, change the pressing position of pasting steel bead wire through core is moved, its result can make the path of seeing side off of steel bead wire remain unchanged, and then can not give unnecessary bending or tension force to steel bead wire.Therefore, in method for manufacturing air tire of the present invention, can steel bead wire be pasted on steel wire exactly and paste face.
Description of drawings
The airtyred right-half plane cutaway view of Fig. 1 for producing through method for manufacturing air tire of the present invention.
The stereogram of the manufacturing installation that Fig. 2 uses in the method for manufacturing air tire of the present invention for expression.
Fig. 3 is the side view of sticker.
Fig. 4 is the stereogram of the core that the operation of triangle glue was carried out in explanation was pasted.
Fig. 5 is the stereogram of the core of the fixation with steel wire operation of this embodiment of explanation.
Fig. 6 is the stereogram of the core of the steel wire screw winding operation of this embodiment of explanation.
Fig. 7 is the vertical view of the manufacturing installation of the steel wire screw winding operation of this embodiment of explanation.
The side view that Fig. 8 (a) describes for the inboard core that the steel wire screw winding operation through this embodiment is produced, the side view that (b) describes for the inboard core that the steel wire screw winding operation through other embodiments is produced.
Fig. 9 pastes the stereogram of the core of operation for the explanation carcass.
Figure 10 is the vertical view of the steel wire screw winding operation of other embodiments of explanation.
Figure 11 (a) and (b) are the cutaway view of the manufacturing approach of the existing bead core of explanation.
Figure 12 is the right-half plane cutaway view of the green tire that obtains through core worker method.
Drawing reference numeral explanation: 1... pneumatic tire; 4... bead part; 6A... carcass cord; 9... inner liner; 10... steel bead wire; 10e... the coiling top of steel bead wire; 20... press pressure roller; I... the inner cavity surface of tire; N... core; N1... the outer surface of core; S... steel wire is pasted face; T... pressing position.
The specific embodiment
Below, based on accompanying drawing an embodiment of the invention are described.
Fig. 1 representes the cutaway view of the pneumatic tire that the method for manufacturing air tire through this embodiment obtains (below, abbreviate " tire " sometimes as) 1.This tire 1 is used tire for car, forms to have the ring-type of pair of bead portion 4, possesses: carcass 6, and it arrives the bead core 5 of bead part 4 via sidewall portion 3 from fetus face 2; Belt 7, it is configured in the tire radial outside of this carcass 6 and in the inside of above-mentioned fetus face 2; And inner liner 9, it is made up of the excellent rubber of the non-gas permeability of inboard that is configured in above-mentioned carcass 6 and tyre cavity face i.
The tire 1 expression wheel rim of Fig. 1 is assembled in regular wheel rim (not shown) and fills and presses in regular and uncharged state, be normal state.
At this; " regular wheel rim "; Be meant the specification that comprises tire institute foundation schematism in, stipulate the wheel rim of this specification by each tire, for example if JATMA then is a standard rim; If TRA then is " Design Rim ", if ETRTO then is " Measuring Rim ".In addition; " press in regular ", be meant in the schematism of the specification that comprises tire institute foundation, stipulate that by each tire the air of each specification is pressed; If JATMA then is high-altitude air pressure; If TRA is then for the maximum put down in writing of table " TIRE LOAD LIMITS AT VARIOUS COLD INFLATION PRESSURES ",, but be to be 180kPa under the car situation about using at tire if ETRTO then is " INFLATION PRESSURE ".
Above-mentioned carcass 6 is made up of carcass cord 6A, and this carcass cord 6A has the body cord that arrives the bead core 5 of bead part 4 from fetus face 2 through sidewall portion 3.The body cord that for example constitutes by organic fiber of above-mentioned carcass cord 6A with respect to tire equator C for example with 75～90 ° angle.The carcass cord 6A of this embodiment crosses in the bead part 4 of tire axial both sides, between 4 with ring-type, and the end 6e of its both sides does not turn back at bead core 5 but in bead core 5, forms the terminal.
Above-mentioned belt 7 is made up of 2 pieces of belt cords at least, in this embodiment, is made up of tire radially inside and outside 2 pieces of belt cord 7A, 7B.Each belt cord 7A, 7B have the elastomeric belt cords such as for example steel cord with 15～40 ° angle inclination with respect to tire equator C.In addition, each belt cord 7A, 7B are overlapping with the cross one another mode of belt cord.
Above-mentioned bead core 5 has in this embodiment: be configured in carcass cord 6A tire axial the inboard inboard core 11 and be configured in the outboard wick 12 in the outside of the tire axial of carcass cord 6A.In addition, in the inboard, outboard wick 11, the end 6e of carcass cord 6A in clamping between 12.Inboard core 11 of this embodiment and outboard wick 12 are respectively a steel bead wire 10,10 to be wound into a row and to form along tire is radially overlapping.But inboard core 11 and outboard wick 12 also can form many rows.
In addition, in this embodiment, for prevent because of with the wearing and tearing that cause that contact of wheel rim (not shown), and chafer rubber (chafer Rubber) 4g that constitutes by vulcanie in the tire radially inner side configuration of bead core 5.
In addition, as shown in Figure 1, in bead part 4, in the tire axial inboard of inboard core 11 and the tire axial of outboard wick 12 outside, be provided with the inside and outside triangle glue 8i, the 8o that constitute and extend with the front end tapered to the tire radial outside by vulcanie.
The pneumatic tire 1 that as above-mentioned, constitutes is through green tire 1a shown in Figure 12 is carried out the vulcanization forming manufacturing.
Above-mentioned green tire 1a use for example shown in Figure 2 possesses the manufacturing installation of core N, whirligig R and sticker P and makes; Wherein, Core N has the outer surface of the inner cavity surface i (shown in Figure 1) of the pneumatic tire 1 that can be shaped; Whirligig R makes above-mentioned core N rotation, and sticker P is pasted on above-mentioned steel bead wire 10 the outer surface N1 of above-mentioned core N.
Above-mentioned core N has the outer surface N1 that comprises tyre surface forming face Na, the forming face Nb of pair of sidewall portion and pair of bead forming face Nc; Wherein, Tyre surface forming face Na is used for the inner cavity surface of the fetus face 2 of tire 1 is shaped; The forming face Nb of pair of sidewall portion is used for the inner cavity surface of sidewall portion 3 is shaped, and pair of bead forming face Nc is used for the tyre cavity face of bead part 4 is shaped.This outer surface N1 with for example regular in the inner cavity surface of tire of 5% the interior pressure condition of pressing approximate.In addition, in the end of the tyre bead side of above-mentioned outer surface N1, be provided with to the outstanding pair of flanges face F in the tire axial outside.Such core N preferably is made up of the metal material of the heat that can bear when sulfuration and pressure or heat-resistant resin etc.The core N of this embodiment is supported in addition, and its tire rotating shaft is in the state of level (being Y direction in this embodiment).
Above-mentioned whirligig R has: for example rectangular-shaped matrix 16, and it can move to horizontal direction (being Y direction in this embodiment) along ground; And the scaffold 15 of L word shape for example, it can be fixed in this matrix 16 rotatably around vertical axis.
Above-mentioned matrix 16 has slide mechanism 23a in this embodiment, this slide mechanism 23a engages with the guide rail 23b that extends along Y direction that is laid on ground.In addition, through not shown actuator etc., matrix 16 can move along Y direction.
Above-mentioned scaffold 15 has: horizontal part 15b, and its along continuous straight runs extends, and one of which is distolateral can be rotationally be bearing in vertical the 1st 18 that is located at matrix 16 by axle; And vertical component effect 15a, it is connected and vertically extends (Z-direction) with another of this horizontal part 15b is distolateral.Be fixed with the 2nd 17 of level in the upper end of vertical component effect 15a.In addition, core N is fixed in the 2nd 17 with the mode that can dismantle.
Thereby,, core N is rotated around its tire rotating shaft CL through making the 2nd 17 rotation with not shown motor etc.In addition, through making the 1st 18 rotation, the tire rotating shaft CL of core N is tilted around vertical axis with not shown motor etc.In this embodiment, the 1st 18 center line Ca and the tire rotating shaft CL of core N intersect, the center O of passing core N more in detail.In addition, to above-mentioned each 17,18 to be rotated drive electric motor etc. be by computer-controlled.Thus, programme-control is carried out according to predefined processing sequence in the anglec of rotation or the angle of inclination of the tire rotating shaft CL of core N.
Like Fig. 2 and shown in Figure 3, above-mentioned sticker P for example possesses: conveying roller 19, and its steel bead wire 10 that will be wound in spool (omit diagram) etc. is transported to above-mentioned core N; Press pressure roller 20, it will be pasted on the outer surface N1 of core N by the steel bead wire 10 that this conveying roller 19 is carried; And cutting tool 21, it cuts above-mentioned steel bead wire 10.
Above-mentioned steel bead wire 10 is through tape sticking device the steel wire outer peripheral face to be covered with half finished rubber in advance.Thus, the surface of steel bead wire 10 has cementability, can paste securely with the tyre element of core side.
In this embodiment, above-mentioned conveying roller 19 is made as rotating shaft level and can be bearing in the fixed head 22 that for example has vertical installed surface by axle rotatably.Outer peripheral face at each conveying roller 19 is provided with the groove 19e that extends along circumferentially, and steel bead wire 10 is transferred with the mode of in this groove 19e, passing through and can not comes off.
In addition, conveying roller 19 possesses: the driven roller 19a that has for example connected motor Ma; Be configured in the guide reel 19b that leans on upstream side than this driven roller 19a; And a plurality of pony roll 19c that are disposed at the periphery of above-mentioned driven roller 19a side by side.
Above-mentioned driven roller 19a is made up of two driven rollers that dispose side by side along the steel wire throughput direction, can link each other rotationally through being with 25.
Above-mentioned guide reel 19b in this embodiment by along the steel wire throughput direction side by side two guide reels of configuration constitute the downside of the rotating shaft of upside and the downstream guide reel 19b of steel bead wire 10 through the rotating shaft of upstream side guide reel 19b and being hung by volume.Like this, hang direction through the volume that changes steel bead wire 10 and make it pass through two guide reels, thus the coiling vestige of the steel bead wire 10 that is easy to generate can remove by the spool keeping time or residual stress etc.
In addition, pony roll 19c can prevent effectively that the end parts of the steel bead wire 10 of the instrument that is cut 21 cutting from upspringing and produce and depart from etc. from driven roller 19a.
In addition, press pressure roller 20 for example by 26 supportings of actuators such as fluid cylinder.This actuator 26 can constitute from the bar 26b that cylinder barrel 26a passes in and out freely by cylinder barrel 26a with by fluid pressure.In addition, the above-mentioned front end that is bearing in this bar 26b by pressure roller 20 by axle.In addition, in this embodiment, utilize conveying roller 19 and, so that (shown in Figure 7) carried, guided to the mode that steel bead wire 10 moves to this steel bead wire 10 in vertical plane arbitrarily by pressure roller 20.
In addition, the above-mentioned cutting tool 21 lifting tool 21b such as cylinder that for example possess the cutter 21a of shear-type and this cutter 21a is gone up and down.Pressing force through above-mentioned lifting tool 21b descends cutter 21a, thereby cuts off the steel bead wire 10 that between driven roller 19a, 19a, passes through.
In the method for manufacturing air tire of this embodiment, as A-stage, core N is installed in the 2nd 17 of whirligig R.In addition, in sticker P, open by pressure roller 20 and core N branch.
Then, as shown in Figure 4, be pasted with at the outer surface N1 of core N: the base portion 4ga of chafer rubber 4g and above-mentioned inner liner 9, and the tire axial outside of the tyre bead forming face Nc of above-mentioned base portion 4ga and inner liner 9 paste above-mentioned in triangle glue 8i.
The base portion 4ga of chafer rubber 4g for example is made up of the elongated shape in cross section, and is wound into the ring-type of little length laterally from tire the inner radially of tyre bead forming face Nc.
In addition, inner liner 9 for example will not vulcanize and be banded rubber strip g and form three-dimension curved surface with helical coil around the outer surface N1 of core N.Rubber strip g for example width W is preferably about 5～35mm, and thickness t is preferably about 0.5～2.0mm.In addition, above-mentioned coiling can carry out through making the 2nd 17 rotation and rubber strip g that never illustrated rubber feedway sees off being moved with the spacing of regulation along the outer surface N1 of core.In addition, in this embodiment, cover the Zone Full of the outer surface N1 of core N with this inner liner 9 and above-mentioned base portion 4ga.
In addition, interior triangle glue 8i is configured in the tire axial outside of above-mentioned base portion 4ga and inner liner 9.Interior triangle glue 8i like this prevents that 10 pairs of inner liners 9 of steel bead wire of inboard core 11 from causing damage.
Then, as shown in Figure 5, make the position that by pressure roller 20 be arranged at regulation of the tyre bead forming face Nc of core N near sticker P.In this embodiment, the rotating shaft of the tire rotating shaft CL of core N and the conveying roller 19 of sticker P is set to the right angle.In addition, in this embodiment, will be configured to identical height by the rotating shaft Cr (shown in Figure 3) of pressure roller 20 and the tire rotating shaft CL of core N.Thus, steel bead wire 10 can be seen off along circumferential tangential direction in the tyre bead forming face Nc of core N.
Then, form the operation of inboard core 11.In this operation; Comprise that outer surface to the bead part 4 of inner liner 9 is (in this embodiment; Outer surface in the bead part 4 of the interior triangle glue 8i of the tire axial of inner liner 9 outside configuration) be that steel wire is pasted face S1, the steel bead wire coiling operation that steel bead wire 10 is pasted with helical form around tire rotating shaft CL.
Above-mentioned steel bead wire coiling operation is characterised in that, comprising: the coiling top 10e of steel bead wire 10 is fixed in the fixation with steel wire operation (shown in Figure 5) that above-mentioned steel wire is pasted face S1; With steel bead wire 10 is pasted on the steel wire screw winding operation (Fig. 6, shown in Figure 7) that above-mentioned steel wire is pasted face S1 and the tire rotating shaft of above-mentioned core N is tilted continuously perhaps interimly.
In the fixation with steel wire operation; As shown in Figure 5; The coiling top 10e of the steel bead wire 10 that will be seen off by above-mentioned conveying roller 19 utilizes and is pressed into core N side by pressure roller 20, and is fixed in steel wire and pastes the position of the regulation of face S1 (in this embodiment, the tire inner 8e radially of triangle glue 8i in this).In this step, because interior triangle glue 8i also is a half finished rubber, so steel bead wire 10 is easily fixed in interior triangle glue 8i.
When the fixation with steel wire operation finishes, carry out steel wire screw winding operation.In steel wire screw winding operation, as shown in Figure 6, through making core N,, steel bead wire 10 circumferentially is pasted on above-mentioned steel wire along tire pastes face S1 thus at the pressing position T (shown in Figure 7) that pushes by pressure roller 20 around tire rotating shaft CL rotation.
In addition, in this operation, move to the tire radial outside of core N, the continuous or interim ground of tire rotating shaft CL (being interimly in this embodiment) of core N is tilted in order to make pressing position T.That is, as shown in Figure 7 through making the 1st 18 rotation in this embodiment, its tire rotating shaft of core N CL is around vertical Z axle clockwise direction rotation.Thus, pressing position T moves to the tire radial outside of core N.In addition, in Fig. 7, dotted the position of core N ' of the A-stage of steel bead wire coiling operation.
In addition, in this embodiment, make when rotating the 1st 18 core N to moving horizontally, thereby pressing position T is remained on certain in fact position away from direction by pressure roller 20.Particularly, the above-mentioned matrix 16 through whirligig R can remain pressing position T necessarily mobile to retreating away from the direction of sticker P on the above-mentioned guide rail 23b of Y axle setting.In such embodiment, need not to make steel bead wire 10 on sticker P, to move.Therefore, as long as steel bead wire 10 is moved, just can make its position stability in single vertical plane, its result does not produce unnecessary bending or tension force, distortion etc., pastes face S1 so can steel bead wire 10 be pasted on steel wire accurately.In addition, owing to can paste face S1 to steel wire and push steel bead wire 10, so rubber components such as triangle glue 8i in can not damaging can be pasted on steel wire with steel bead wire 10 reliably and paste face S1 with certain pressure.
In addition, shown in Fig. 7, Fig. 8 (a), the in fact seamlessly overlapping coiling of steel bead wire 10a, 10b that inboard core 11 tires directly make progress adjacent forms.Thus, be utilized in the bonding force of the half finished rubber of steel bead wire 10a that tire directly makes progress adjacent, 10b, stablize the reeling condition of bead core 5, the anticreep effect of performance carcass.In addition; Above-mentioned " in fact seamlessly "; Be meant that bead core spreads all over tire circumferentially and tire directly makes progress steel bead wire 10a adjacent, do not produce the form between the crack between 10b, in addition also do not comprise and can directly upwards produce the form between the crack of the diameter d that surpasses steel bead wire 10 at tire because of the trueness error on making.
In addition; Above-mentioned steel wire screw winding operation is preferably alternately carries out equal diameter coiling step repeatedly and increases diameter coiling step above-mentioned steel bead wire 10; Wherein, in equal diameter coiling step, top 10e reels with certain in fact diameter from above-mentioned coiling; Increasing diameter coiling step is after equal diameter coiling step, and the front of 10e increases winding diameter smoothly at coiling top.In this embodiment; Shown in Fig. 8 (a), inboard core 11 by equal diameter zone 11a with increase diameter region 11b and constitute, wherein; Equal diameter zone 11a forms through above-mentioned equal diameter coiling step, increases diameter region 11b and forms through the above-mentioned diameter coiling step that increases.
Formation is forming linearity in fact through such steel bead wire 10k that increases diameter region 11b that diameter coiling step is reeled and formed that increases when the tyre side face is seen.In addition, constitute the steel bead wire 10J of the equal diameter zone 11a that forms through equal diameter coiling step coiling, when the tyre side face is seen, becoming circular-arc.Inboard core 11 uniformities that form like this are outstanding.In addition; Above-mentioned " in fact linearly shape "; Be meant the form that forms straight line more than 80% of the tire circumferential lengths LB that increases diameter region, can also comprise that in addition the radius of curvature more than 80% of the tire circumferential lengths that increases diameter region forms the form more than 1.5 times of the radius of curvature in equal diameter zone.
In such method for manufacturing air tire, can steel bead wire 10 be sticked on steel wire with helical form and paste upward formation bead core 5 of face S, and unlike the anchor clamps of that kind use in the past J.Therefore, in method for manufacturing air tire of the present invention, can significantly cut down manufacturing cost.
In addition, the tire rotating shaft of core N can tilt continuously.The inboard core 11 that produces through such manufacturing approach, for example shown in Fig. 8 (b), steel bead wire 10 is by only constituting through increasing the spiral-shaped diameter region that increases that diameter coiling step forms.
Then, the outside that is implemented in the tire axial of inboard core 11 is pasted the carcass of above-mentioned carcass cord 6A and is pasted operation.In this operation; As shown in Figure 9, for example, through the cord sheet 6c of the long a plurality of short strip shapes of the length that tire length radially is more circumferential than tire; Circumferentially connect in the tire axial of inboard core 11 outside and along tire, thereby form the carcass cord 6A of 3D shape accurately.The cord sheet 6c of this embodiment pastes near the beginning tire inner 11e radially of above-mentioned inboard core 11 successively.In addition, the tire inner end 6i radially with above-mentioned adjacent cord sheet 6c is configured to mutual butt joint.It is core N to be rotated around tire rotating shaft CL paste above-mentioned cord sheet 6c that such carcass is pasted operation.
Then, implement that cord sheet 6c is pasted on the tire complete cycle and form the operation that carcass 6 forms outboard wick 12 afterwards.In this embodiment; Form the operation of outboard wick 12; Be included in the bead part 4 of carcass cord 6A outer surface, be that steel wire is pasted face S2, the same ground with the operation that forms inboard core 11, the steel bead wire coiling operation of steel bead wire 10 being pasted curl around the tire rotating shaft.In addition, this steel bead wire coiling operation comprises above-mentioned fixation with steel wire operation and above-mentioned steel wire screw winding operation.
Then, shown in figure 12 after forming the operation of outboard wick 12, paste respectively with the base portion 4ga of outer triangle glue 80, chafer rubber 4g and be connected and form the secondary 4gb of portion of tyre bead lateral surface, belt 7, sidewall rubber 3G, tread rubber 2G etc.Outer surface N1 at core N forms green tire 1a like this.
As other embodiments, shown in figure 10, in above-mentioned whirligig R, fixing base 16 makes above-mentioned sticker P move horizontally to the direction away from core N, thereby can above-mentioned pressing position T be remained on certain in fact position.In this embodiment because sticker P moves along the vertical plane of carrying steel bead wire 10, so bending can not act on this steel bead wire 10 aspect on be preferred.More than, preferred implementation of the present invention is specified, but the invention is not restricted to illustrated embodiment, also deformable is that variety of way is implemented.
Claims (5)
1. a method for manufacturing air tire is an airtyred method of making the ring-type with pair of bead portion, it is characterized in that,
Comprise steel bead wire coiling operation; On this outer surface of the core with the outer surface that can above-mentioned airtyred inner cavity surface be shaped; On the outer surface that is steel wire stickup face of the bead part of the carcass cord of pasting across the mode between the bead part of both sides with ring-type at the outer surface of the bead part of the inner liner of pasting across the mode between the bead part of both sides with ring-type and/or in the outside of above-mentioned inner liner; To be pasted with helical form around the tire rotating shaft by the steel bead wire that rubber covers
Above-mentioned steel bead wire coiling operation comprises:
The fixation with steel wire operation is utilized by pressure roller the coiling top of steel bead wire to be fixed to the above-mentioned steel wire that is pasted on core and to paste face; And
Steel wire screw winding operation; Through above-mentioned steel bead wire being seen off on one side to core side above-mentioned core is rotated on one side around the tire rotating shaft; By the above-mentioned pressing position of pushing by pressure roller steel bead wire circumferentially is being pasted on above-mentioned steel wire stickup face along tire thus, and the tire rotating shaft of above-mentioned core is tilted so that above-mentioned pressing position moves to the tire radial outside of above-mentioned core continuously perhaps interimly.
2. method for manufacturing air tire according to claim 1 is characterized in that,
Comprise through making above-mentioned core to move the operation that thus above-mentioned pressing position is remained on certain in fact position away from direction by pressure roller.
3. method for manufacturing air tire according to claim 1 and 2 is characterized in that,
Above-mentioned steel bead wire is wound into helical form laterally from the tire radially inner side, and
Above-mentioned steel wire screw winding operation is alternately carried out equal diameter coiling step repeatedly and is increased diameter coiling step,
Above-mentioned equal diameter coiling step is that above-mentioned steel bead wire is begun the step of reeling with certain in fact diameter from above-mentioned coiling top,
The above-mentioned diameter coiling step that increases is after above-mentioned equal diameter coiling step, the step that winding diameter is increased smoothly in the front at coiling top.
4. according to each described method for manufacturing air tire in the claim 1 to 3, it is characterized in that,
Above-mentioned steel bead wire constitutes, and directly makes progress steel bead wire adjacent by overlapping coiling in fact seamlessly at tire.
5. method for manufacturing air tire according to claim 3 is characterized in that,
When the tyre side face is observed, form linearity in fact at the above-mentioned steel bead wire of being reeled in the diameter coiling step that increases.
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| JP2011016999A JP5200124B2 (en) | 2011-01-28 | 2011-01-28 | Pneumatic tire manufacturing method |
| JP2011-016999 | 2011-01-28 |
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| JP2014069563A (en) * | 2012-10-02 | 2014-04-21 | Sumitomo Rubber Ind Ltd | Method and line for tire production |
| CN107498903B (en) * | 2017-09-18 | 2023-08-01 | 宁夏神州轮胎有限公司 | Tyre inner liner hot film sticking device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5336358A (en) * | 1991-08-22 | 1994-08-09 | The Yokohama Rubber Co., Ltd. | Apparatus for manufacturing bead assemblies for tires |
| JP2004098826A (en) * | 2002-09-09 | 2004-04-02 | Bridgestone Corp | Pneumatic radial tire and its manufacturing method |
| JP2006159450A (en) * | 2004-12-02 | 2006-06-22 | Mitsubishi Heavy Ind Ltd | Green tire manufacturing apparatus |
| CN1307042C (en) * | 1998-12-17 | 2007-03-28 | 倍耐力轮胎公司 | Method and apparatus for manufacturing components of tyre for vehicle wheels |
| CN101090812A (en) * | 2005-11-23 | 2007-12-19 | 美国轮胎公司 | Improved method and apparatus for forming a core of plies, belts and beads and for positiming the core in a mold for forming and elastomeric tire |
| CN101137519A (en) * | 2005-03-07 | 2008-03-05 | 米其林技术公司 | Tyre bead structure |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63214434A (en) * | 1987-03-03 | 1988-09-07 | Bridgestone Corp | Manufacture of bead core for tire |
| JP2003071946A (en) * | 2001-09-06 | 2003-03-12 | Bridgestone Corp | Tire for two-wheeled vehicle and its manufacturing method |
| JP4056290B2 (en) * | 2002-04-30 | 2008-03-05 | 株式会社ブリヂストン | Pneumatic tire manufacturing method and apparatus |
| FR2879500A1 (en) * | 2004-12-22 | 2006-06-23 | Michelin Soc Tech | METHOD AND DEVICE FOR THE MANUFACTURE AND INSTALLATION OF A CIRCONFERENTIAL REINFORCEMENT FOR A PNEUMATIC AND TIRE OBTAINED BY SAID METHOD |
-
2011
- 2011-01-28 JP JP2011016999A patent/JP5200124B2/en active Active
- 2011-10-19 CN CN201110326743.4A patent/CN102615843B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5336358A (en) * | 1991-08-22 | 1994-08-09 | The Yokohama Rubber Co., Ltd. | Apparatus for manufacturing bead assemblies for tires |
| CN1307042C (en) * | 1998-12-17 | 2007-03-28 | 倍耐力轮胎公司 | Method and apparatus for manufacturing components of tyre for vehicle wheels |
| JP2004098826A (en) * | 2002-09-09 | 2004-04-02 | Bridgestone Corp | Pneumatic radial tire and its manufacturing method |
| JP2006159450A (en) * | 2004-12-02 | 2006-06-22 | Mitsubishi Heavy Ind Ltd | Green tire manufacturing apparatus |
| CN101137519A (en) * | 2005-03-07 | 2008-03-05 | 米其林技术公司 | Tyre bead structure |
| CN101090812A (en) * | 2005-11-23 | 2007-12-19 | 美国轮胎公司 | Improved method and apparatus for forming a core of plies, belts and beads and for positiming the core in a mold for forming and elastomeric tire |
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| Publication number | Publication date |
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| CN102615843B (en) | 2015-11-25 |
| JP2012157976A (en) | 2012-08-23 |
| JP5200124B2 (en) | 2013-05-15 |
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